CN107239625A - A kind of overlapping screening technique of cut-parts and system - Google Patents
A kind of overlapping screening technique of cut-parts and system Download PDFInfo
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- CN107239625A CN107239625A CN201710433503.1A CN201710433503A CN107239625A CN 107239625 A CN107239625 A CN 107239625A CN 201710433503 A CN201710433503 A CN 201710433503A CN 107239625 A CN107239625 A CN 107239625A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
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Abstract
This application discloses a kind of overlapping screening technique of cut-parts, including：Determine the external closing lines of each cut-parts in all cut-parts to be screened；The cut-parts that external closing lines intersect with the external closing lines of cut-parts to be measured are filtered out from all cut-parts to be screened, first group of cut-parts is obtained；First group of cut-parts and the cut-parts to be measured are projected, the projection vestige and the projection vestige of the cut-parts to be measured of each cut-parts in first group of cut-parts is obtained；Projection vestige and the nonoverlapping cut-parts of projection vestige of the cut-parts to be measured are filtered out from first group of cut-parts, second group of cut-parts is obtained；Second group of cut-parts are rejected from first group of cut-parts, cut-parts after being screened.By the overlapping screening technique of cut-parts provided herein, overlapping cut-parts can be fast and accurately filtered out, it is ensured that the efficiency of production.In addition, the application further correspondingly discloses a kind of overlapping screening system of cut-parts.
Description
Technical field
The present invention relates to clothes technology of preparing, the overlapping screening technique of more particularly to a kind of cut-parts and system.
Background technology
In recent years, with the continuous expansion of garment market, the production of clothes is also gradually automated, for example, produce clothing cutting plate
It is automatic cutting bed.
Before automatic cutting bed production operation is carried out, it is necessary to by with the data such as cut-parts shape and size CAD (CAD,
Computer Aided Design, CAD) file input it is automatic cutting bed can be smoothed out production.And CAD
Typesetting personnel in the general clothes company of file are created, in order to prevent the uneven of typesetting personnel's technology or error,
And cause cut-parts in cad file overlapping phenomenon occur, it can all carry out cut-parts before automatic cutting bed reading cad file cut-parts data
Overlapping detection, filters out overlapping cut-parts, it is to avoid is malfunctioned during production and causes economic loss.
But, regrettably in the overlapping detection technique of some cut-parts on the market, carrying out the overlapping detection speed per hour of cut-parts
Degree and accuracy rate are all undesirable.For example, because cut-parts quantity is more in the file of detection, and the shape of cut-parts is very multiple
It is miscellaneous, it is likely that the situation for causing identification to malfunction, reduce the efficiency of production.
The content of the invention
In view of this, it is an object of the invention to provide a kind of overlapping screening technique of cut-parts and system, cut out with improving detection
The overlapping accuracy rate of piece, quick and precisely filters out overlapping cut-parts, improves production efficiency.Its concrete scheme is as follows：
A kind of overlapping screening technique of cut-parts, including：
Determine the external closing lines of each cut-parts in all cut-parts to be screened；
The sanction that external closing lines intersect with the external closing lines of cut-parts to be measured is filtered out from all cut-parts to be screened
Piece, obtains first group of cut-parts；
First group of cut-parts and cut-parts to be measured are projected, the projection of each cut-parts in first group of cut-parts is obtained
Vestige and the projection vestige of cut-parts to be measured；
Projection vestige and the nonoverlapping cut-parts of projection vestige of cut-parts to be measured are filtered out from first group of cut-parts, is obtained
Second group of cut-parts；
Second group of cut-parts are rejected from first group of cut-parts, cut-parts after being screened.
Preferably, the process for determining the external closing lines of each cut-parts in all cut-parts to be screened, including：
Determine the boundary rectangle of each cut-parts in all cut-parts to be screened.
Preferably, it is described that external closing lines and the external blockade line of cut-parts to be measured are filtered out from all cut-parts to be screened
The process of the intersecting cut-parts of bar, including：
The cut-parts that boundary rectangle intersects with the boundary rectangle of cut-parts to be measured are filtered out from all cut-parts to be screened.
Preferably, it is described filtered out from first group of cut-parts projection vestige it is not overlapping with the projection vestige of cut-parts to be measured
Cut-parts process, including：
Processing is scanned to the projection vestige of cut-parts to be measured and the projection vestige of target cut-parts using scan-line algorithm, if
Scanning process is discontinuous, then judges that the projection vestige of the target cut-parts is not overlapping with the projection vestige of cut-parts to be measured, wherein, institute
It is any one cut-parts in first group of cut-parts to state target cut-parts.
Preferably, it is described that first group of cut-parts and cut-parts to be measured are projected, obtain every in first group of cut-parts
The process of the projection vestige of individual cut-parts and the projection vestige of cut-parts to be measured, including：
Determine axis of projection；
First group of cut-parts and cut-parts to be measured are projected using axis of projection.
Preferably, the process for determining axis of projection, including：
The point in cut-parts to be measured is obtained, and line is carried out to the point got, the sideline of cut-parts to be measured is obtained；
The normal vector in the sideline is defined as axis of projection.
Preferably, the process for determining axis of projection, including：
By cut-parts to be measured in the plane any one or any several straight lines be defined as axis of projection；
Wherein, the direction corresponding to the different straight lines in any several straight lines is different.
Disclosed herein as well is a kind of overlapping screening system of cut-parts, including：
External closing lines determining module, the external closing lines for determining each cut-parts in all cut-parts to be screened；
External blockade line bar screening module, cuts out for filtering out external closing lines from all cut-parts to be screened with to be measured
The intersecting cut-parts of the external closing lines of piece, obtain first group of cut-parts；
Cut-parts projection module, for being projected to first group of cut-parts and cut-parts to be measured, obtains first group of sanction
The projection vestige and the projection vestige of cut-parts to be measured of each cut-parts in piece；
Vestige screening module is projected, for filtering out projection vestige and the projection of cut-parts to be measured from first group of cut-parts
The nonoverlapping cut-parts of vestige, obtain second group of cut-parts；
Module is rejected in cut-parts, for second group of cut-parts to be rejected from first group of cut-parts, is cut out after being screened
Piece.
Preferably, the external closing lines determining module is boundary rectangle determining module, for determining described needed
Screen the boundary rectangle of each cut-parts in cut-parts.
Preferably, the cut-parts projection module, including：
Axis of projection determining unit, for determining axis of projection；
Projecting cell, for being projected using axis of projection to first group of cut-parts and cut-parts to be measured.
In the application, the overlapping screening technique of cut-parts includes：Determine the external closing of each cut-parts in all cut-parts to be screened
Lines；The cut-parts that external closing lines intersect with the external closing lines of cut-parts to be measured are filtered out from all cut-parts to be screened,
Obtain first group of cut-parts；First group of cut-parts and cut-parts to be measured are projected, the projection of each cut-parts in first group of cut-parts is obtained
Vestige and the projection vestige of cut-parts to be measured；The projection vestige of projection vestige and cut-parts to be measured is filtered out from first group of cut-parts not
Overlapping cut-parts, obtain second group of cut-parts；Second group of cut-parts is rejected from first group of cut-parts, cut-parts after being screened.It can be seen that,
The application filters out the process of the intersecting cut-parts of external closing lines, is to filter out the sanction that overlapping possibility is larger in advance
Piece, the workload subsequently screened can be reduced by this process, improve the speed of screening.And subsequently screen the side using projection
Method, judges whether the on-axis projection between cut-parts intersects, and can accurately judge whether overlapping between cut-parts.Generally speaking, it is sharp
With the present processes, overlapping cut-parts can be fast and accurately filtered out, it is ensured that the efficiency of production.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is a kind of overlapping screening technique flow chart of cut-parts disclosed in the embodiment of the present application；
Fig. 2 is a kind of overlapping screening technique flow chart of specific cut-parts disclosed in the embodiment of the present application；
Fig. 3 is a kind of method flow diagram projected to first group of cut-parts and cut-parts to be measured in the embodiment of the present application；
Fig. 4 is another method flow diagram projected to first group of cut-parts and cut-parts to be measured in the embodiment of the present application；
Fig. 5 is a kind of overlapping screening system structural representation of cut-parts disclosed in the embodiment of the present application；
Fig. 6 is the structural representation of cut-parts projection module disclosed in the embodiment of the present application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
The embodiment of the present application discloses a kind of overlapping screening technique of cut-parts, and shown in Figure 1, this method includes：
Step 11：Determine the external closing lines of each cut-parts in all cut-parts to be screened.
Cut-parts in the embodiment of the present application, are referred in Apparel Manufacturing, and designer is in plotting file, for example
The clothing cutting plate drawn in cad file, these cut-parts can provide for cutting and staff needs the shape for tailoring pieces of cloth
And size, it is ensured that the style that designer's design is made can be sutured by determining the pieces of cloth come.Due to a dress ornament, for example jacket or
Person's trousers, the pieces of cloth that will be tailored by many are stitched into, therefore are usually to have many cut-parts in cad file.
External closing lines in the embodiment of the present application, refer to that one can just surround the closing of cut-parts outside cut-parts
Lines, this external closing lines can be various shapes, such as circular and rhombus or cutting work people
Arbitrary shape as defined in member, is not limited here.
Step 12：External closing lines and the external closing lines phase of cut-parts to be measured are filtered out from all cut-parts to be screened
The cut-parts of friendship, obtain first group of cut-parts.
Cut-parts to be measured can be the cut-parts arbitrarily selected from all cut-parts to be screened, use cut-parts to be measured and its
His cut-parts are carried out after the external intersecting judgement of closing lines, and another cut-parts can be chosen again for cut-parts to be measured, and and other
Cut-parts carry out the intersecting judgement of closing lines, and until all having been carried out between all cut-parts to be screened, external closing lines are intersecting to be sentenced
It is disconnected, the intersecting cut-parts of external closing lines are screened.In the case where the quantity of cut-parts is relatively more, or cut-parts are pressed
Enter line label according to order, the external intersecting judgement of closing lines between cut-parts is then carried out in sequence, can so ensure cut-parts
Between judgement do not repeat, accelerate filter out it is external closing lines intersect cut-parts speed.
Using judging first group of cut-parts that the external method that whether intersects of closing lines is screened for the overlapping sanction of possibility
Piece, it is impossible to exclude typesetting personnel and consider to cause cut-parts not overlap onto but external the problem of space availability ratio in cut-parts typesetting
Close lines and intersect situation, it is necessary to which two steps carried out in programmed screening, therefore above-described embodiment can be regarded as first
Secondary screening, main purpose is to reduce by second of accurate screening amount of calculation, so as to improve breakneck acceleration.
Step 13：First group of cut-parts and cut-parts to be measured are projected, the projection of each cut-parts in first group of cut-parts is obtained
Vestige and the projection vestige of cut-parts to be measured.
Here cut-parts to be measured can be the cut-parts arbitrarily selected from first group of cut-parts, use cut-parts to be measured and the
Other cut-parts in one group of cut-parts are projected and obtained after projection vestige, then other cut-parts chosen in first group of cut-parts are
Cut-parts to be measured, and projected with other cut-parts of first group of cut-parts, until all being carried out between first group of all cut-parts of cut-parts
Project and obtain projection vestige.First group of cut-parts it is a fairly large number of in the case of, or first group of cut-parts is in sequence
Enter line label, then cut-parts are projected two-by-two in sequence, can so ensure that the projection between cut-parts is not repeated, accelerate to throw
The speed of shadow processing.
In the present embodiment, the projection vestige of acquisition can be two vestiges, that is to say, that the projection of this step refers to two
Individual cut-parts project to same axis of projection simultaneously, so as to obtain projecting vestige.And the selection of axis of projection can be it is random, can be with
Choose from different directions, can also prespecified axis of projection direction.In order to ensure the accuracy of screening, different directions projection
The quantity of axle should be The more the better, and the quantity of different directions axis of projection is more, and the projection vestige of acquisition is also more, for cutting out
The overlapping judgement of piece is also more accurate.
Step 14：Projection vestige and the nonoverlapping cut-parts of projection vestige of cut-parts to be measured are filtered out from first group of cut-parts,
Obtain second group of cut-parts.
In above-mentioned steps, projection vestige of two cut-parts on different directions axis of projection can be obtained, projection vestige is real
It is two on border, if existed between two cut-parts overlapping, then the projection vestige on all axis of projections will be overlapping.Cause
Whether this judges overlapping between two cut-parts, it is only necessary to whether judge projection vestige of two cut-parts on different directions axis of projection
It is all overlapping, if projection vestige of two cut-parts on different directions axis of projection is overlapping, then illustrate that the two cut-parts are overlapping,
Otherwise, as long as there is the projection vestige of axis of projection on a direction not overlapping, then illustrate that two cut-parts are not overlapping.
In addition, projection process and judge to project the whether overlapping process of vestige can also be while enter in the embodiment of the present application
OK, after on-axis projection is carried out to two cut-parts, the whether overlapping judgement of projection vestige is carried out, need not if not overlapping
Continue to continue to project on different directions axis of projection, the projection that can enter between next cut-parts, if overlapping, continues under
Continue to project on individual different directions axis of projection, until all direction projection axle upslide ghost marks are overlapping, then can be determined that two
It is overlapping between cut-parts.
Step 15：Second group of cut-parts is rejected from first group of cut-parts, cut-parts after being screened.
By the above-mentioned steps of the embodiment of the present application it is recognised that second group of cut-parts is nonoverlapping sanction in first group of cut-parts
Piece, rejects second group of cut-parts from first group of cut-parts, then can obtain overlapping cut-parts., can after overlapping cut-parts are obtained
To preserve the index value of overlapping cut-parts in cad file using software, typesetting staff is facilitated to find CAD by index value
Overlapping cut-parts in file.Cut-parts overlapping in cad file can also be highlighted, to remind typesetting personnel
It can be seen that, the application filters out the process of the intersecting cut-parts of external closing lines, is possible overlapping in order to filter out
Cut-parts, the process screened in advance by this, it is possible to reduce follow-up screening process, it is possible to increase the speed of screening.And utilize
The method of projection, judges whether the on-axis projection between cut-parts intersects, and can accurately judge whether overlapping between cut-parts.Total
For, using the present processes, it can fast and accurately filter out overlapping cut-parts, it is ensured that the efficiency of production.
The embodiment of the present application discloses a kind of overlapping screening technique of specific cut-parts, shown in Figure 2, real relative to upper one
Example is applied, the present embodiment has made further instruction and optimization to technical scheme.Specifically：
Step 21：Determine the boundary rectangle of each cut-parts in all cut-parts to be screened.
Step 22：The sanction that boundary rectangle intersects with the boundary rectangle of cut-parts to be measured is filtered out from all cut-parts to be screened
Piece, obtains first group of cut-parts.
Relative to above-described embodiment, the external closing lines that the present embodiment is determined are boundary rectangle.In view of to be needed
Screening cut-parts determine to need to draw during external closing lines, and the complexity of external closing lines directly can just influence what is drawn
Speed, the drafting speed ratio of simple external closing lines is very fast, thus the present embodiment be made that relative to above-described embodiment it is excellent
Change, so as to improve the speed of whole screening process.Certainly, simple external closing lines also have a lot, for example circumscribed circle, external
Rhombus and external pentagon etc., the speed of drafting can be verified that the present embodiment is only enumerated external by practical operation
Exemplified by rectangle.
Step 23：First group of cut-parts and cut-parts to be measured are projected, the projection of each cut-parts in first group of cut-parts is obtained
Vestige and the projection vestige of cut-parts to be measured.
Step 24：The projection vestige and the projection vestige of target cut-parts of cut-parts to be measured are scanned using scan-line algorithm
Processing, if scanning process is discontinuous, judges that the projection vestige of target cut-parts is not overlapping with the projection vestige of cut-parts to be measured, obtains
Second group of cut-parts.
Wherein, the target cut-parts are any one cut-parts in first group of cut-parts.
Relative and above-described embodiment, the present embodiment lists a kind of method for judging whether on-axis projection vestige is overlapping, is
Scan-line algorithm.If two cut-parts are overlapping, then by projection, the projection vestige of axis of projection in all directions should be all
It is overlapping, projection vestige at this moment can be a line segment, and it is continuous that line segment, which is scanned, using scan-line algorithm.Instead
It, if two cut-parts are not overlapping, then the projection vestige at least having the axis of projection on a direction be it is nonoverlapping, at this moment
Projection vestige can be two sections of line segments, using scan-line algorithm, to this two lines section, to be scanned be discontinuous.
Step 25：Second group of cut-parts is rejected from first group of cut-parts, cut-parts after being screened.
The present embodiment further illustrates and optimized that the step of not illustrating may be referred to foregoing for previous embodiment
Embodiment, is not discussed here.
The embodiment of the present application discloses the overlapping screening technique of another specific cut-parts, relative to a upper embodiment, this reality
Apply example and make further instruction and optimization to technical scheme.Specifically：
To being illustrated in both of the aforesaid embodiment to the process that first group of cut-parts and cut-parts to be measured are projected.
It is shown in Figure 3, it is a kind of method that first group of cut-parts and cut-parts to be measured are projected in the embodiment of the present application：
Step 31：The point in cut-parts to be measured is obtained, and line is carried out to the point for obtaining band, the sideline of cut-parts to be measured is obtained.
Step 32：The normal vector in sideline is defined as axis of projection.
In the cut-parts to be measured that some have broken line edge, such as trousers piece, it is possible to use mapping software extracts these fold-line edges
The point of edge, then connect these points with straight line in the direction of the clock or counterclockwise successively, it is possible to cut-parts to be measured
Sideline.
The normal vector in all sidelines of cut-parts to be measured is calculated using algorithm, so can be with as the axis of projection needed for projection
Obtain the projection vestige on different axis of projections according to the difference of cut-parts to be measured, and then improve and judge whether overlapping accurate of cut-parts
Degree.
Step 33：First group of cut-parts and cut-parts to be measured are projected using axis of projection.
The process steps explanation projected is similar to previous embodiment, may be referred to saying for previous embodiment projection section
It is bright, repeat no more here.
It is shown in Figure 4, it is another side that first group of cut-parts and cut-parts to be measured are projected in the embodiment of the present application
Method：
Step 41：By cut-parts to be measured in the plane any one or any several straight lines be defined as axis of projection；
Wherein, the direction corresponding to the different straight lines in any several straight lines is different.
In the cut-parts that some have smooth edges, such as circular splicing pieces of cloth do not extract the point information of cut-parts, it is impossible to root
Strong point determines sideline and sideline normal vector, and it is projection that the straight line of several different directions can be predefined in the plane of cut-parts
Axle, forms axis of projection for example, according to horizontal plane angle can divide equally, an axis of projection, cut-parts institute to be measured is set every 30 degree
Just there is the axis of projection of 6 different directions in plane.
Step 42：First group of cut-parts and cut-parts to be measured are projected using axis of projection.
The process steps explanation projected is similar to previous embodiment, may be referred to saying for previous embodiment projection section
It is bright, repeat no more here.
The embodiment of the present application also discloses a kind of overlapping screening system of cut-parts, and shown in Figure 5, the system includes：
External closing lines determining module 51：External blockade line for determining each cut-parts in all cut-parts to be screened
Bar.
External blockade line bar screening module 52：For filtered out from all cut-parts to be screened it is external closing lines with it is to be measured
The intersecting cut-parts of the external closing lines of cut-parts, obtain first group of cut-parts.
Cut-parts projection module 53：For being projected to first group of cut-parts and cut-parts to be measured, obtain every in first group of cut-parts
The projection vestige and the projection vestige of cut-parts to be measured of individual cut-parts.
Project vestige screening module 54：For filtering out projection vestige and the projection trace of cut-parts to be measured from first group of cut-parts
The nonoverlapping cut-parts of mark, obtain second group of cut-parts.
Module 55 is rejected in cut-parts：For second group of cut-parts to be rejected from first group of cut-parts, cut-parts after being screened.
Wherein, external closing lines determining module 51 can be boundary rectangle determining module, equally, external blockade line bar grizzl(e)y
Modeling block 52 can be boundary rectangle screening module.
It is shown in Figure 6, cut-parts projection module 53, in addition to：
Axis of projection determining unit 61：For determining axis of projection.
Projecting cell 62：For being projected using axis of projection to first group of cut-parts and cut-parts to be measured.
It is may be referred on above-mentioned modules and the more detailed course of work of unit disclosed in previous embodiment
Corresponding contents, no longer repeated herein.
Finally, in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of key elements not only include that
A little key elements, but also other key elements including being not expressly set out, or also include be this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except also there is other identical element in the process including the key element, method, article or equipment.
A kind of overlapping screening technique of cut-parts provided by the present invention and system are described in detail above, herein should
The principle and embodiment of the present invention are set forth with specific case, the explanation of above example is only intended to help and managed
Solve the method and its core concept of the present invention；Simultaneously for those of ordinary skill in the art, according to the thought of the present invention,
It will change in embodiment and application, in summary, this specification content should not be construed as to this hair
Bright limitation.
Claims (10)
1. a kind of overlapping screening technique of cut-parts, it is characterised in that including：
Determine the external closing lines of each cut-parts in all cut-parts to be screened；
The cut-parts that external closing lines intersect with the external closing lines of cut-parts to be measured are filtered out from all cut-parts to be screened, are obtained
To first group of cut-parts；
First group of cut-parts and cut-parts to be measured are projected, the projection vestige of each cut-parts in first group of cut-parts is obtained
And the projection vestige of cut-parts to be measured；
Projection vestige and the nonoverlapping cut-parts of projection vestige of cut-parts to be measured are filtered out from first group of cut-parts, second is obtained
Group cut-parts；
Second group of cut-parts are rejected from first group of cut-parts, cut-parts after being screened.
2. according to the method described in claim 1, its feature is being, described to determine each cut-parts in all cut-parts to be screened
The process of external closing lines, including：
Determine the boundary rectangle of each cut-parts in all cut-parts to be screened.
3. method according to claim 2, it is characterised in that described to filter out external closing from all cut-parts to be screened
The process for the cut-parts that lines intersect with the external closing lines of cut-parts to be measured, including：
The cut-parts that boundary rectangle intersects with the boundary rectangle of cut-parts to be measured are filtered out from all cut-parts to be screened.
4. according to the method described in claim 1, it is characterised in that described to filter out projection vestige from first group of cut-parts
With cut-parts to be measured projection the nonoverlapping cut-parts of vestige process, including：
Processing is scanned to the projection vestige of cut-parts to be measured and the projection vestige of target cut-parts using scan-line algorithm, if scanning
Process is discontinuous, then judges that the projection vestige of the target cut-parts is not overlapping with the projection vestige of cut-parts to be measured, wherein, the mesh
It is any one cut-parts in first group of cut-parts to mark cut-parts.
5. the method according to claim any one of 1-4, it is characterised in that described to first group of cut-parts and sanction to be measured
Piece is projected, and obtains the mistake of the projection vestige of each cut-parts and the projection vestige of cut-parts to be measured in first group of cut-parts
Journey, including：
Determine axis of projection；
First group of cut-parts and cut-parts to be measured are projected using axis of projection.
6. method according to claim 5, it is characterised in that the process of the determination axis of projection, including：
The point in cut-parts to be measured is obtained, and line is carried out to the point got, the sideline of cut-parts to be measured is obtained；
The normal vector in the sideline is defined as axis of projection.
7. method according to claim 5, it is characterised in that the process of the determination axis of projection, including：
By cut-parts to be measured in the plane any one or any several straight lines be defined as axis of projection；
Wherein, the direction corresponding to the different straight lines in any several straight lines is different.
8. a kind of overlapping screening system of cut-parts, it is characterised in that including：
External closing lines determining module, the external closing lines for determining each cut-parts in all cut-parts to be screened；
External blockade line bar screening module, for filtering out external closing lines and cut-parts to be measured from all cut-parts to be screened
The intersecting cut-parts of external closing lines, obtain first group of cut-parts；
Cut-parts projection module, for being projected to first group of cut-parts and cut-parts to be measured, is obtained in first group of cut-parts
The projection vestige of each cut-parts and the projection vestige of cut-parts to be measured；
Vestige screening module is projected, for filtering out projection vestige and the projection vestige of cut-parts to be measured from first group of cut-parts
Nonoverlapping cut-parts, obtain second group of cut-parts；
Module, for second group of cut-parts to be rejected from first group of cut-parts, cut-parts after being screened are rejected in cut-parts.
9. system according to claim 8, it is characterised in that the external closing lines determining module is that boundary rectangle is true
Cover half block, the boundary rectangle for determining each cut-parts in all cut-parts to be screened.
10. system according to claim 8 or claim 9, it is characterised in that the cut-parts projection module, including：
Axis of projection determining unit, for determining axis of projection；
Projecting cell, for being projected using axis of projection to first group of cut-parts and cut-parts to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710433503.1A CN107239625A (en) | 2017-06-09 | 2017-06-09 | A kind of overlapping screening technique of cut-parts and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710433503.1A CN107239625A (en) | 2017-06-09 | 2017-06-09 | A kind of overlapping screening technique of cut-parts and system |
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| CN107239625A true CN107239625A (en) | 2017-10-10 |
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| CN201710433503.1A Pending CN107239625A (en) | 2017-06-09 | 2017-06-09 | A kind of overlapping screening technique of cut-parts and system |
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| CN110533715A (en) * | 2018-05-25 | 2019-12-03 | 拓卡奔马机电科技有限公司 | Labeling method, system, electric terminal and computer readable storage medium |
| CN110989491A (en) * | 2019-12-27 | 2020-04-10 | 杭州爱科科技股份有限公司 | Automatic cutting track generation method and device for flexible material zero-space layout pattern |
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| CN110989491A (en) * | 2019-12-27 | 2020-04-10 | 杭州爱科科技股份有限公司 | Automatic cutting track generation method and device for flexible material zero-space layout pattern |
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